Unsteady Dynamic Simulation in Methane / Air Diffusion Flame

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 51 Issue 1 Page 73-83

published_at 2000-10

A030051000109.pdf

[fulltext] 1.41 MB

Title

メタン-空気拡散火炎の非定常数値シミュレーション

Unsteady Dynamic Simulation in Methane / Air Diffusion Flame

Creators Kawahara Hideo

Creators Nishimura Tatsuo

Source Identifiers

Creator Keywords

Numerical flow visualization Jet diffusion flame Transitional flow Flow and flame interaction

The numerical study is performed to examine the structure of jet diffusion flame with/without a duct in the transitional flow regime, i.e., Re=1000-20000. The flame sheet model of infinite chemical reaction and unit Lewis number are assumed in the simulation. The mechanism of vortex growth is explained by using the streaklines visualized with marker particles, and the interrelation between vortical and thermal strctures is clarified for two cases with/without a duct. The presence of a duct leads to suppression of vortex growth in methane jet and therefore the flame spreading is significantly reduced.

Subjects

工学 ( Other)

Languages jpn

Resource Type departmental bulletin paper

Publishers 山口大学工学部

Date Issued 2000-10

File Version Version of Record

Access Rights open access

Relations

[ISSN]1345-5583

[NCID]AA11422756

[isVersionOf] [URI]http://memoirs.lib-e.yamaguchi-u.ac.jp/

Schools 工学部